Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:25 2012 Optimize a model with 751 rows, 272 columns and 2446 nonzeros Presolve removed 338 rows and 2 columns Presolve time: 0.01s Presolved: 429 rows, 270 columns, 1946 nonzeros Variable types: 0 continuous, 270 integer (270 binary) Found heuristic solution: objective 16.0000000 Root relaxation: objective 4.000000e+00, 311 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 4.0000000 4.00000 0.0% - 0s Explored 0 nodes (540 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%